Regular tune-ups ensure best economy; check owner’s manual for recommended maintenance intervals. Special attention should be given to maintaining clean air filters… diminished air flow increases gas waste.

. Inspect suspension and chassis parts for occasional misalignment. Bent wheels, axles, bad shocks, broken springs, etc. create engine drag and are unsafe at high traveling speeds.

Auto air conditioners can reduce fuel economy by 10% to 20%. Heater fan, power windows and seats increase engine load; the more load on your engine, the less miles per gallon.